Table 4.

Effect of carbohydrate sources and cotton seed meal levels on ruminal pH, ammonia nitrogen and urea nitrogen concentration

		CC1		CR		SEM	Significance2
		LCM	HCM	LCM	HCM		CS	CM	I
Ruminal pH	0	6.6	6.7	6.6	6.8	0.13	ns	ns	ns
h-post feeding	4	6.4	6.4	6.4	6.3	0.06	ns	ns	ns
	mean	6.5	6.6	6.5	6.6	0.05	ns	ns	ns
NH3-N, mg/dl	0	7.1	6.8	7.4	7.4	0.61	ns	ns	ns
h-post feeding	4	8.4	10.2	8.3	7.7	0.99	ns	ns	ns
	mean	7.8	8.5	7.9	7.6	0.45	ns	ns	ns
BUN, mg/dl	0	7.0	7.1	6.8	7.0	0.20	ns	ns	ns
h-post feeding	4	10.3	10.8	7.8	9.3	0.80	*	ns	ns
	mean	8.7	9.4	7.3	8.2	1.00	*	ns	ns

¹CC = Cassava chip, CR3:1= Cassava chip+rice bran 3:1, LCM = Low cotton seed meal, HCM = High cotton seed meal.

²CS = Energy sources, CM = Cotton seed meal levels, I = ES×CM interaction.

^*p<0.05, ns = Non-significant difference, SEM = Standard error of the means.